Voltage-to-Frequency / Frequency-to-Voltage Converters

TC1043C The TC9400TC9401TC9402 are low-cost Voltage-to-Fre-
quency (V/F) converters, utilizing low-power CMOS
technology. The converters accept a variable Analog
input signal and generate an output pulse train, whose
frequency is linearly proportional to the input voltage.
The devices CAN also be used as highly accurate
Frequency-to-Voltage (F/V) converters, accepting
virtually any input frequency waveform and providing a
linearly proportional voltage output.
A complete V/F or F/V system only requires the
addition of two capacitors, three resistors, and refer-
ence voltage. By Microchip Technology Inc.